Elements. Migrate LibraryAnalyzer.

Change-Id: Ia383ddfc11798365dd3c0ca456161e04c355c46d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/410240
Commit-Queue: Konstantin Shcheglov <[email protected]>
Reviewed-by: Phil Quitslund <[email protected]>

Author: scheglov

pkg/analyzer/lib/src/dart/analysis/library_analyzer.dart

@@ -2,11 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 import 'package:analyzer/dart/analysis/declared_variables.dart';
 import 'package:analyzer/dart/analysis/features.dart';
-import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/error/listener.dart';
 import 'package:analyzer/source/file_source.dart';
@@ -254,15 +251,15 @@ class LibraryAnalyzer {
     var libraryUnit = libraryUnitAnalysis.unit;
     var libraryOverrideToken = libraryUnit.languageVersionToken;
 
-    var elementToUnit = <CompilationUnitElement, CompilationUnit>{};
+    var elementToUnit = <CompilationUnitElementImpl, CompilationUnit>{};
     for (var fileAnalysis in _libraryFiles.values) {
       elementToUnit[fileAnalysis.element] = fileAnalysis.unit;
     }
 
     for (var directive in libraryUnit.directives) {
       if (directive is PartDirectiveImpl) {
         var elementUri = directive.element?.uri;
-        if (elementUri is DirectiveUriWithUnit) {
+        if (elementUri is DirectiveUriWithUnitImpl) {
           var partUnit = elementToUnit[elementUri.unit];
           if (partUnit != null) {
             var shouldReport = false;
@@ -390,7 +387,7 @@ class LibraryAnalyzer {
         errorReporter: fileAnalysis.errorReporter,
       );
       analysesToContextUnits[fileAnalysis] = linterContextUnit;
-      if (fileAnalysis.unit.declaredElement == definingUnit) {
+      if (fileAnalysis.unit.declaredFragment == definingUnit) {
         definingContextUnit = linterContextUnit;
         workspacePackage = fileAnalysis.file.workspacePackage;
       }
@@ -472,7 +469,7 @@ class LibraryAnalyzer {
     ErrorVerifier errorVerifier = ErrorVerifier(
       errorReporter,
       _libraryElement,
-      unit.declaredElement!,
+      unit.declaredFragment!,
       _typeProvider,
       _inheritance,
       _libraryVerificationContext,

pkg/analyzer/lib/src/dart/ast/ast.dart

@@ -3526,7 +3526,9 @@ final class CompilationUnitImpl extends AstNodeImpl
 
   @experimental
   @override
-  LibraryFragment? get declaredFragment => declaredElement as LibraryFragment?;
+  CompilationUnitElementImpl? get declaredFragment {
+    return declaredElement;
+  }
 
   @override
   NodeListImpl<DirectiveImpl> get directives => _directives;

pkg/analyzer/lib/src/dart/element/element.dart

@@ -1278,8 +1278,8 @@ class CompilationUnitElementImpl extends UriReferencedElementImpl
     if (prefix == null && name.startsWith(r'_$')) {
       for (var partElement in parts) {
         var uri = partElement.uri;
-        if (uri is DirectiveUriWithSource &&
-            uri is! DirectiveUriWithUnit &&
+        if (uri is DirectiveUriWithSourceImpl &&
+            uri is! DirectiveUriWithUnitImpl &&
             file_paths.isGenerated(uri.relativeUriString)) {
           return true;
         }
@@ -9712,7 +9712,7 @@ mixin ParameterElementMixin
 class PartElementImpl extends _ExistingElementImpl
     implements PartElement, PartInclude {
   @override
-  final DirectiveUri uri;
+  final DirectiveUriImpl uri;
 
   PartElementImpl({
     required this.uri,

pkg/analyzer/lib/src/summary2/bundle_reader.dart

@@ -833,7 +833,7 @@ class LibraryReader {
     });
   }
 
-  DirectiveUri _readDirectiveUri({
+  DirectiveUriImpl _readDirectiveUri({
     required CompilationUnitElementImpl containerUnit,
   }) {
     DirectiveUriWithRelativeUriStringImpl readWithRelativeUriString() {

pkg/analyzer/lib/src/summary2/library_builder.dart

@@ -673,7 +673,7 @@ class LibraryBuilder {
     required CompilationUnitElementImpl containerUnit,
     required file_state.PartIncludeState state,
   }) {
-    DirectiveUri directiveUri;
+    DirectiveUriImpl directiveUri;
     switch (state) {
       case PartIncludeWithFile():
         var includedPart = state.includedPart;